Portable case



FIG. 1 is a front perspective view of a portable case.

FIG. 2 is a rear perspective view of the portable case of FIG. 1.

FIG. 3 is a front view of the portable case of FIG. 1.

FIG. 4 is a rear view of the portable case of FIG. 1.

FIG. 5 is a left side view of the portable case of FIG. 1.

FIG. 6 is a right side view of the portable case of FIG. 1.

FIG. 7 is a top view of the portable case of FIG. 1; and,

FIG. 8 is a bottom view of the portable case of FIG. 1.

The broken lines illustrate portions of the portable case and form no part of the claimed design. 

CLAIM The ornamental design for a portable case, substantially as shown and described. 